EP3244856B1 - Saugfähiges produkt mit vliesstoff - Google Patents

Saugfähiges produkt mit vliesstoff Download PDF

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Publication number
EP3244856B1
EP3244856B1 EP15878175.7A EP15878175A EP3244856B1 EP 3244856 B1 EP3244856 B1 EP 3244856B1 EP 15878175 A EP15878175 A EP 15878175A EP 3244856 B1 EP3244856 B1 EP 3244856B1
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EP
European Patent Office
Prior art keywords
absorbent
absorbent product
fibres
nonwoven material
nonwoven
Prior art date
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Application number
EP15878175.7A
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English (en)
French (fr)
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EP3244856A1 (de
EP3244856A4 (de
Inventor
Shabira Abbas
Maria Fernkvist
Anna Nihlstrand
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Essity Hygiene and Health AB
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Essity Hygiene and Health AB
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Priority to PL15878175T priority Critical patent/PL3244856T3/pl
Publication of EP3244856A1 publication Critical patent/EP3244856A1/de
Publication of EP3244856A4 publication Critical patent/EP3244856A4/de
Application granted granted Critical
Publication of EP3244856B1 publication Critical patent/EP3244856B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/64—Straps, belts, ties or endless bands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2400/00—Materials characterised by their function or physical properties
    • A61L2400/10—Materials for lubricating medical devices

Definitions

  • Absorbent product comprising a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product, wherein the nonwoven material comprises non-absorbent and/or absorbent fibres.
  • WO2008/147264 is related to a nonwoven material for use as a body facing sheet in an absorbent article where the nonwoven material comprises at least two layers where the layer directed against the user during use of the article comprises staple fibres having a coarseness less than 1.5 dtex. This part of the sheet feels soft for the user. It is described that a soft feeling may also be achieved using fibres/filaments such as cotton, viscose, lyocell, having a high softness and textile comfort. However, these fibres/filaments bind liquid and a wet surface against the skin is left, which is not advantageous.
  • US 2006/0121811 relates to an absorbent product where the surface in physical contact with the skin of the user comprises fine fibres to create a soft material against the skin.
  • WO2007/114742 relates to a nonwoven topsheet material comprising microfibres in contact with the skin to improve the softness against the skin.
  • EP 1 444 970 A1 discloses an absorbent product comprising a skin-care agent which is fixed to a surface of a nonwoven fabric. The skin care agent is fixed to hydrophobic fibers that constitute the nonwoven fabric.
  • US 5 951 535 discloses a surface material comprising a combined nonwoven fabric comprising at least two layers of a long fibre nonwoven and a short fibre nonwoven joined together.
  • the nonwoven material is used in an absorptive article in order to reduce the wetness of the surface in contact with the wearer.
  • Fine fibres with low coarseness as described in prior art as useful to have closest to the skin to improve the softness, are not necessarily suitable to have closest to the skin of a user of an absorbent product in presence of small amount of moisture. Fine fibres with low coarseness are soft in a dry condition, but when moisture/liquid is present fine fibres also have disadvantages.
  • Friction occurring between a nonwoven material and the skin of the user is different in the presence of liquid/moisture than when no liquid/moisture is present. Even a very small amount of moisture present originating from perspiration, sweat or other body fluids has an impact on the friction forces occurred between the nonwoven material and the skin of the user. It has therefore been discovered that it is really important to carefully choose the nonwoven characteristics, so that the nonwoven is able to minimize the mechanical discomfort during the overall use of the product.
  • the nonwoven material may be present on all parts of the absorbent product that are in contact with skin, such as for example on topsheet of the absorbent article or in case of a diaper on waist region, hip region, standing gathers, leg openings and belt.
  • the absorbent product provides for low friction between the skin of the user and the product, both when the area is substantially dry but also when the area is moist due to perspiration and sweat or the presence of other bodily fluids.
  • the invention relates to an absorbent product comprising a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product.
  • the nonwoven material comprises non-absorbent and/or absorbent fibres, wherein the fibres at least on a surface arranged to be in contact with skin of a user during the use of the absorbent product have a coarseness of from 0.1 to 10 dtex, from 0.5 to 7 dtex or from 0.5 to 3 dtex.
  • the fibres and/or the nonwoven material is coated with a lubricating coating composition suitable for use in absorbent and/or hygiene products at least on a surface arranged to be in contact with skin of a user during use of the absorbent product.
  • the nonwoven material may also comprise absorbent fibres.
  • the absorbent fibres may have a coarseness from 1 to 10 dtex or from 1.1 to 7 dtex or from 1.2 to 3 dtex.
  • clinging i.e. the forces acting between the absorbent product and the human skin in the presence of small amounts of moisture such as perspiration, sweat and urine.
  • Clinging can be described as a perpendicular force acting between a solid material and a support surface in the presence of a small amount of moist.
  • An example of clinging is a shower curtain which can easily stick to skin in presence of small amount of moisture.
  • the nonwoven material needs to be designed so that at least the wet friction is reduced.
  • Wet friction is experienced between a wet or moist product and skin. Wet friction can occur even at small concentrations of moist or liquid presence in the product or in the boundary between the nonwoven and the skin. Dry friction is experienced between a dry product and skin. The measurement method for determining the wet and dry friction will be described more in detail below.
  • a lubricating coating composition suitable for use in absorbent and/or hygiene products at least on a surface arranged to be in contact with skin of a user during use of the absorbent product and having non-absorbent and/or absorbent fibres in the nonwoven having a coarseness of from 0.1 to 10 dtex, from 0.5 to 7 dtex or from 0.5 to 3 dtex.
  • the absorbent product exhibits a reduction in the wet friction between the absorbent product and the skin of a user.
  • the reduction is achieved by the fact that the lubricating coating composition increases the contact angle, thereby reducing menisci and the wet friction between the skin and nonwoven.
  • Wet contacts are contacts between the fibres of the nonwoven and the skin, where moisture is present only at the contact points and not in the pores of the nonwoven.
  • a material of coarser fibres renders fewer contact points with skin than a material made of finer fibres.
  • the combination of reducing the number of wet contacts and applying lubricating coating of moisture contributes to reducing the wet friction between the skin of the user and the nonwoven.
  • the lubricating coating composition may be chosen from silicone oils of which one preferable example is polydimethylsiloxane. These lubricating compositions are non-toxic and provide very good lubricating properties for the absorbent product.
  • the lubricating coating composition may be coated in an amount of 10 ppm to 10%-by weight, based on the total weight of the nonwoven.
  • the coating may be applied by means of printing or kiss rolling, where the coating can be applied to 20-100% of the total surface area.
  • the lubricating coating composition on the nonwoven material may have a water content less than 5.0 weight percent, less than 3.0 weight percent, less than 2 weight percent, less than 1.0 weight percent, or less than 0.5 weight percent.
  • the low water content reduces risk for bacterial growth.
  • the coated nonwoven material may be dried after the coating is applied to the nonwoven material.
  • the nonwoven material may comprise spunbond, air laid, wet laid, carded, electro spun or meltblown nonwoven or any combination thereof.
  • the nonwoven material may be a laminate or a combination of several types of nonwoven materials.
  • the nonwoven material may comprise spunbond and meltblown nonwoven in a combination and form a layered product spunbond - meltblown - spunbond (SMS) or spunbond - meltblown - meltblown - spunbond (SMMS).
  • SMS spunbond - meltblown - spunbond
  • SMMS spunbond - meltblown - meltblown - spunbond
  • the nonwoven may have a basis weight from 8 to 80 g/m 2 , 8 to 40 g/m 2 or 8 to 30 g/m 2 .
  • a nonwoven material with sufficient basis weight to resist forces created by the friction is provided.
  • the nonwoven may comprise a mixture of non-absorbent and absorbent fibres.
  • the absorbent fibres are present in an amount of 2-30% by weight, preferably about 2-10 % by weight, based on the total weight of the fibres in the nonwoven material.
  • the absorbent fibres may have a coarseness from 1 to 10 dtex or from 1.1 to 7 dtex or from 1.2 to 3 dtex.
  • the absorbent fibres are preferably based on cellulose including regenerated cellulose fibres such as viscose and/or lyocell fibres which are nontoxic.
  • the non-absorbent fibres may comprise synthetic fibres, such as polyolefin-based fibres, for example fibres of polypropylene (PP) or polyethylene (PE).
  • the synthetic fibres may be of any commercially available type and can be obtained e.g. by extrusion.
  • the absorbent product may be a hygienic product with skin contact such as a diaper, incontinence protection garment, sanitary napkin or panty shield.
  • the absorbent product may also be of other type of absorbent product in which a nonwoven is arranged to be in contact with skin of the user.
  • the absorbent product may comprise a chassis having a front and rear panel and an absorbent body having a wetting zone for receiving urine and other bodily fluids.
  • the nonwoven material is comprised in at least one region outside the wetting zone in the absorbent body for receiving urine and other bodily fluids.
  • the nonwoven material is alternatively comprised in the regions outside the absorbent body.
  • the wetting zone and/or the absorbent body are not always in direct contact with the skin since these areas are distanced from the user by a "cup shape" and/or standing gathers.
  • the absorbent product may comprise a waist region, hip region, standing gathers, leg openings and belt.
  • the nonwoven material is at least comprised in at least one of the waist region, hip region, standing gathers, leg openings and belt. These areas may include moist, e.g. perspiration/sweat, and friction between the nonwoven material and the skin of the user occurs with increased risk for chafing. This risk can be decreased by the use of the nonwoven material in these regions.
  • the belt can be attached to the chassis or the belt can be separate from the chassis but being arranged to be attachable to the chassis.
  • the nonwoven may at least be comprised in the belt on a side of the belt being arranged to be in contact with skin. Thus risk for chafing and skin problems can be reduced in the belt region.
  • the absorbent product may comprise a topsheet, an absorbent body and a backsheet, and wherein the nonwoven material is comprised in the topsheet and/or in the backsheet (for example around the leg openings in the backsheet being in contact with the skin) of the absorbent product.
  • the nonwoven material is comprised in the topsheet and/or in the backsheet (for example around the leg openings in the backsheet being in contact with the skin) of the absorbent product.
  • the nonwoven material as described above preferably can render lower friction values in presence of moisture than a nonwoven material comprising fibres and/or nonwoven without a coating with a lubricating coating composition and/or fibres having a finer coarseness than 0.1 dtex on a surface arranged to be in contact with skin of a user during use of the absorbent product.
  • These friction values are measured according to a repeated stick and slip method which will be described in more detail below.
  • a curve with friction value measurements is obtained in repeated runs using the method.
  • the curve comprises a first slope having a positive coefficient illustrating increase in the friction values, a plateau, and a second slope having a negative coefficient illustrating decrease in the friction values. At the plateau, the friction values are substantially constant over the extension of the plateau.
  • the invention also relates to an absorbent product comprising a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product.
  • the nonwoven material has lower friction values in presence of moisture than a nonwoven material comprising fibres and/or nonwoven without a coating with a lubricating coating composition and/or fibres having a finer coarseness than 0.1 dtex on a surface arranged to be in contact with skin of a user during use of the absorbent product.
  • the friction is measured according to a repeated stick and slip method.
  • a curve with friction value measurements is obtained in repeated runs using the method.
  • the curve comprises a first slope having a positive coefficient illustrating increase in the friction values, a plateau, and a second slope having a negative coefficient illustrating decrease in the friction values.
  • Lower friction values render the absorbent product more skin friendly and skin problems arising with the use of the absorbent product can be reduced.
  • the invention further relates to an absorbent product comprising a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product.
  • the nonwoven material has lower maximum friction value in presence of moisture, measured along a curve obtained in repeated runs with measurements according to a repeated stick and slip method, than a nonwoven material comprising fibres and/or nonwoven without a coating with a lubricating coating composition and/or fibres having a finer coarseness than 0.1 dtex on a surface arranged to be in contact with skin of a user during use of the absorbent product.
  • the friction values are obtained in repeated runs and the obtained friction values during the run form a curve comprising a first slope having a positive coefficient illustrating increase in the friction values, a plateau, and a second slope having a negative coefficient illustrating decrease in the friction values.
  • the obtained friction values during the run form a curve comprising a first slope having a positive coefficient illustrating increase in the friction values, a plateau illustrating essentially unchanged friction, and a second slope having a negative coefficient illustrating decrease in the friction values.
  • Lower friction values render the absorbent product more skin friendly and skin problems arising with the use of the absorbent product can be reduced.
  • the invention further relates to the use of a nonwoven material in an absorbent or hygiene product to reduce wet friction between the nonwoven material and skin of a user.
  • the nonwoven material comprises non-absorbent fibres and/or absorbent fibres, wherein the fibres have a coarseness of from 0.1 to 10 dtex, from 0.5 to 7 dtex or from 0.5 to 3 dtex.
  • the fibres and/or the nonwoven material is coated with a lubricating coating composition suitable for use in absorbent and/or hygiene products at least on a surface arranged to be in contact with skin of a user during use of the absorbent product.
  • the nonwoven material of this type with lower friction values render the absorbent product more skin friendly and skin problems arising with the use of the absorbent product can be reduced.
  • the wet friction is measured between the surface of the nonwoven and skin of a user of the absorbent product by the repeated stick and slip method described in the description.
  • the nonwoven material may be used in an absorbent product chosen from a diaper, incontinence protection garment, sanitary napkin or panty shield.
  • the nonwoven material is used in substantially non-absorbent regions of the absorbent product.
  • absorbent product is meant a product that absorbs or is adapted to absorb bodily fluids, such as urine or blood.
  • the absorbent product is wearable by a user and by “wearable absorbent product” is meant an absorbent article which is to be worn by the user, such as a diaper, pant-type diaper, sanitary napkin, panty-liner or incontinence product.
  • absorbent fibre is meant a fibre having the ability to absorb liquid, such as about 1g liquid/1 g fibres.
  • the fibre also has moisture buffering capacity and is defined as hygroscopic.
  • non-absorbent fibre a fibre with substantially no absorption capacity
  • the nonwoven material layers or webs of the present invention may advantageously be selected from, for example, of spunbond, air laid, wet laid, carded, electro spun or meltblown nonwovens.
  • the nonwoven material may be bonded by multiple techniques, e.g. by needling, hydroentangling, or heat bonding.
  • the nonwoven material of the disclosed products may be a mixture of natural and synthetic materials or be comprised of only synthetic or natural fibres.
  • Natural fibres are for instance cellulosic fibres or fibres from regenerated cellulose.
  • Synthetic fibres are for instance polyester fibres, polyolefin-based fibres such as polypropylene fibres or polyethylene fibres, and/or the combination thereof or the like.
  • the nonwoven material may be a combination of several types of nonwoven materials, such as spunbond-meltblown, spunbond - meltblown - spunbond (SMS) type or spunbond - meltblown - meltblown - spunbond (SMMS) type.
  • SMS spunbond - meltblown - spunbond
  • SMMS spunbond - meltblown - meltblown - spunbond
  • the basis weight for the nonwoven layer can be varied of from 8 to 80 g/m 2 , preferably from 8 to 30 g/m 2 , and more preferably from 8 to 20 g/m 2 .
  • the basis weight is under 40 g/m 2 , sufficient breathability, drapeability and comfort for the product can be obtained.
  • the basis weight of from 8 to 20 g/m 2 has been found to provide best comfort and flexibility while processability of the material is still good.
  • lubricating or “lubricant” is meant a substance or composition that serves to lubricate, thus making a surface onto which the composition is applied slippery.
  • the various nonwoven material layers of the elastic laminate may be of the same or different materials and may have the same, similar or different basis weights. If different materials are selected, an elasticised web is attainable having different surface characteristics across the web. For example, the layers may have different friction properties or different liquid/vapour permeability properties.
  • the lubricating coating composition of the present invention may be of the type silicone oil, i.e. polymerized siloxane, and preferably polydimethylsiloxane which is also called for dimethicone.
  • the water content of the lubricating coating composition may be less than 5.0 weight percent, less than 3.0 weight percent, less than 2 weight percent, less than 1.0 weight percent, or less than 0.5 weight percent.
  • the lubricating composition may be applied to the fibres/the nonwoven material in the form of a liquid solution, but the material is then dried to decrease the water content to less than 5.0 weight percent.
  • Fig. 1 schematically shows the effect of the presence of moisture on the fibres in a nonwoven when the nonwoven is moist.
  • Fig. 1 schematically shows an enlargement of one fibre 2 in a nonwoven material 1 in the presence of moisture.
  • the moisture causes menisci 3 to form between the fibre and the skin 4 increasing the wet friction between the nonwoven 1 and the skin 4.
  • the menisci 3 form a strong interaction between the nonwoven 1 and skin 4, i.e. that a relatively strong force is needed to break each meniscus 3.
  • This is the effect of the capillarity force of the liquid around the surface contact site (surface contact site is the area of the fibres having contact with the liquid and the area of the skin 4 having contact with the liquid), which can have a profound effect on the strength of adhesion joints and form meniscus 3.
  • the lubricating coating composition decreases the wettability of the fibres 2, and the capillarity force is decreased, resulting in that the interaction has been weakened and that a lower force is needed to break each meniscus 3.
  • the lower force needed to break the menisci leads to a reduced wet friction.
  • Fig. 2 schematically shows friction measurements made with a nonwoven with and without the lubricating coating composition using the repeated stick and slip method.
  • Fig. 2 comprises two curves: first curve 6 illustrating the friction values of a nonwoven comprising only non-absorbent fibres and second curve 7 illustrating the friction values of a nonwoven comprising coated fibres.
  • the friction values of curves 6, 7 are plotted in a graph with the number of friction runs on the x-axis and the friction force in gmf on the y-axis.
  • gmf is meant gram-force and one gram-force is 9.80665 mN.
  • the method measures the static friction, sns value (stick and slip value) in gram force, gmf, between a material and the human skin.
  • the method means that repeatedly runs are made using the same material strip. First the sns value for the dry state (dry material and skin) is measured followed by wet state at different liquid levels (from completely wetted material, to moist and to almost dry) until the sns value is back to the skin-material interaction level measured in the first dry run, which means that the material is dry again. The method is thus called a repeated stick and slip method or sns run dry-wet-dry.
  • the stick and slip value is defined as the point on the force curve (gmf) where the material starts gliding over the arm.
  • the sns values from all single force curves are then put together in a new graph, sns values as a function of number of runs.
  • a strip 110 of test material is pulled, with the help of a MTT 170 tensile tester 120, across the volar forearm 100 to measure the static friction between the material and the skin as illustrated in Fig. 4a .
  • a dry strip is pulled across the volar forearm.
  • the strip is wetted completely and is pulled repeatedly across the volar forearm until the dry state is reached again.
  • Systems with dry skin/dry material, dry skin/wet material, occluded skin/dry material and occluded skin/wet material can be tested. Dry skin/wet material is the only measurement made in the description, however during the wet runs the skin is to a certain degree influenced by the liquid in the system and may become somewhat occluded before finally reaching the level for the dry sns value again.
  • the material to be tested is punched or made into rectangular strips measuring 30 x 350 mm.
  • the treated side i.e. the side of the nonwoven having claimed properties, is placed towards the skin.
  • the material strip is completely wetted by submerging the whole strip in a beaker of 0,9 weight % NaCl solution (150 ml) for 1 min.
  • the strip is lifted in the edge that will be placed in the clamp of the tensile tester using a pair of tweezers.
  • the clamp of the tensile tester is illustrated in Fig. 4a with reference number 114.
  • the strip is slowly pulled up against the edge of the beaker which allows the material to drain its excess liquid. This represents a completely wetted nonwoven, a saturation of 100%.
  • the counter weight 60 g is placed.
  • the counter weight is illustrated in Fig. 4a . with reference number 112.
  • the computer and control unit are turned on and the instrument and program is initialized and is in the ready to start mode.
  • Delay time is for every friction measurement 12 seconds to give time to zero the load and place the material strip in the right position on the arm before the run begins.
  • the test person should be standing close to the instrument with the arm supported comfortably in the armrest channel.
  • the armrest channel is adjusted so that the top of the volar forearm is in level with the clamp on the tensile tester. This means that the material strip is horizontal between the clamp and arm. During measurements, the arm should be kept still and relaxed.
  • the dry nonwoven strip is placed in the clamp on the tensile tester and the 60 g counter weight is fastened in the other edge of the strip.
  • test persons arm should be correct placed in the armrest channel as described according to "Positioning of test persons arm”.
  • the test is started. The first seconds of the delay time is used to zero the measurement, lift the nonwoven strip from the arm and hold the counter weight so that there is no tension on the tensile tester. The nonwoven strip is then hung over the relaxed arm and the counter weight should be still. The sns run starts directly when the delay time of 12 sec. is finished.
  • the load cell travels the pre-set distance (50 mm) at a certain speed (150 mm/min) and pulls the nonwoven strip over the arm and when it stops the sns value is noted.
  • the so called sns value which is where the material no longer "sticks" to the skin and starts to glide, is noted for every repetition.
  • the same nonwoven strip is then submerged in a bath of 0,9 % NaCl solution for 1 min, see instructions about "Wetting of material strip”.
  • the wet nonwoven strip is then attached to the clamp on the tensile tester exactly as for the first run with the counterweight in the edge and the arm in the same position.
  • the friction measurement is started in the same way as the first run and the sns value from the friction curve for the second run is noted.
  • the nonwoven strip is lifted away from the arm, without touching anything, while the tensile tester goes back to its start position.
  • the next run will be started, in the same way as for the first run and as soon as possible, and the third sns value is noted. The test continues like this until the sns value is on the same level as the first run.
  • the sns value from each run is noted (gmf) and a graph showing the repeated sns values (gmf) is made, sns values as a function of number of runs.
  • the nonwoven material having a lubricating coating composition and wherein the fibres have a coarseness of 0.1 to 10 dtex is represented schematically in Fig. 2 by the second curve 7 and has lower relative friction values than a nonwoven material consisting of fibres without the coating having a finer coarseness than 0.1 dtex represented by first curve 6.
  • the friction values for both materials are measured according to the repeated stick and slip method on the same test person.
  • Curves 6, 7 have friction value measurements obtained in repeated runs using the method.
  • the curves 6,7 comprises a first slope 6a, 7a having a positive coefficient illustrating increase in the friction values, a plateau 6b, 7b and a second slope 6c, 7c having a negative coefficient illustrating decrease in the friction values. At the plateau, the friction values are essentially the same, small variations are possible.
  • the curves start at a value corresponding to the dry friction measured for dry nonwoven.
  • the positive coefficient of the first slope 6a, 7a indicates an increase in friction when the dry nonwoven is wetted and wet friction occurs.
  • the second slope 6c, 7c illustrates the interface between the skin and nonwoven returning the friction curve to the value of dry friction.
  • the nonwoven material according to the invention has a lower wet friction over the entire range of runs.
  • Fig. 3a shows principle sketches of the different force contributions and where on the wet-dry range they are assumed to act. From left to right: F_dry or the force exerted between dry skin 30 and a dry nonwoven material comprising fibres 32, F_wet points contacts or the force exerted between the fibres 32 of the material and the skin 30 in the presence of a small amount of moisture 34 and F_wet pores or the force exerted between a wet material comprising fibres 32 and a large amount of moisture 34 illustrated by the shadowed area and the skin 30. In the last case there is more moisture present than for when F_wet points contacts is exerted. The larger amount of moisture 34 present in the pores can be seen to create a thin film over the skin.
  • the force from wet pores provides the substantial contribution to the wet friction.
  • the wet pore force rapidly increases the friction as seen by the positive coefficient of first slope 6a, 7a of curve as shown in Fig. 2 .
  • the material slowly dries over the next runs. Over these runs the force from the wet pores still provides the greatest contribution to the friction force. This in indicated by the plateau 6b, 7b.
  • the force from the wet contacts i.e. the menisci described above, provide a sharp rise in the friction force, as indicated by the sharp increase of friction of peak 6d, 7d.
  • the material dries further reducing the number of wet contacts. This quickly returns the curve to the dry friction value. This is seen by the negative coefficient of second slope 6c, 7c. If the peak is reached between two measurements, the peak may not be shown in the measurement.
  • Fig 4b shows measurement data obtained by the repeated stick and slip method for a reference nonwoven material without a lubricating coating, two nonwoven materials which are the same nonwoven material as the reference, but having a lubricating coating composition dimethicone (PMX-200 Silicone fluid 1.5CS from Dow Corning Corporation) in different amounts, i.e. 400 ppm and 0.4%, respectively and a nonwoven material (also the same nonwoven material as the reference) comprising a coating "Dreamskin" from Intelligent fabrics technology, which is not lubricating.
  • a lubricating coating composition dimethicone PMX-200 Silicone fluid 1.5CS from Dow Corning Corporation
  • An absorbent product generally in which the nonwoven material is used comprises a chassis and an absorbent structure within the chassis.
  • the chassis comprises a front panel and a rear panel.
  • the front panel is intended to overlie the abdominal region of the wearer and the rear panel is intended to overlie the lower back and buttocks region.
  • the absorbent product also has a crotch region extending between the front panel and the rear panel.
  • the crotch region may be made of the absorbent structure and sometimes also the chassis of the product.
  • the absorbent structure further comprises an absorbent body located primarily in the crotch region but can also extend into the front panel and the back panel of the chassis, with the absorbent body being sandwiched between a liquid pervious topsheet and a generally liquid impervious backsheet.
  • the outer cover of the chassis may also be the liquid impervious backsheet of the absorbent structure.
  • the absorbent body may comprise any conventional material suitable for absorbing discharged bodily wastes, such as cellulosic fluff pulp, tissue layers, highly absorbent polymers (superabsorbents), absorbent foam materials including hydrogel-foam material, absorbent nonwoven materials or the like.
  • the liquid permeable topsheet comprises or consist of a nonwoven material.
  • the topsheet material may further be composed of tow fibres, porous foams, apertured plastic films etc.
  • the materials suited as topsheet materials should be soft and non-irritating to the skin and be readily penetrated by body fluid, e.g. urine or menstrual fluid, and display low rewetting properties.
  • the liquid impermeable backsheet may consist of a thin plastic film, e. g. a polyethylene or polypropylene film, a nonwoven material coated with a liquid impervious material, a hydrophobic nonwoven material which resists liquid penetration or laminates of plastic films and nonwoven materials.
  • the backsheet material may be breathable so as to allow vapour to escape from the absorbent body, while still preventing liquids from passing through the backsheet material.
  • the topsheet and backsheet may be connected to each other for example by adhesive bonding, gluing or welding by heat or ultrasonic.
  • the topsheet and/or the backsheet may further be attached to the absorbent body by any method known in the art, such as adhesive, heat-bonding etc.
  • the absorbent product i.e. for example a conventional diaper, belted absorbent product or pant type diaper or any other absorbent product, includes at least one region comprising the nonwoven as described earlier.
  • the region preferably at least partially comprises a waist region and/or a hip region of the absorbent product to provide comfort and fit around the waist.
  • the hip region is defined as the region below the waist region and above the crotch region.
  • the region may also be a leg structure in the crotch region, whereby the nonwoven can provide a reduced friction against the skin of the user when the contact surface includes moisture.
  • the nonwoven of the present invention may also constitute at least a part of a standing gather structure in the crotch region of the absorbent product or it can be a part of a crotch elastic structure in the crotch region.
  • the crotch elastic structure serves i.a. to encourage the absorbent product to adopt a bowl shape in the crotch region when the product is worn to thereby assist in retaining discharged bodily wastes.
  • the nonwoven of the present invention is especially suitable to be used at regions outside an initial wetting zone or landing zone of the absorbent products. This means that the nonwoven may at least partially cover the absorbent structure, but is preferably located outside the initial wetting zone or landing zone, i.e. an area in the crotch portion to which urine initially lands.
  • Fig. 5 schematically shows an absorbent article in the form of a panty liner 8 comprising a nonwoven.
  • panty liner is meant an absorbent product which is used for feminine hygiene and which is narrower than sanitary napkins. Panty liners absorb less liquid than sanitary napkins and are thus aimed for light bodily discharge and for everyday cleanliness.
  • the panty liner 8 comprises a liquid-permeable topsheet 9, a liquid-impermeable back sheet 10 and an absorbent body 11 arranged between the topsheet 9 and the back sheet 10.
  • the absorbent body 11 comprises an absorbent material with absorbent characteristics and a superabsorbent material.
  • the panty liner 8 has a first extension in a longitudinal direction and a second extension in a transverse direction.
  • the panty liner 8 comprises a nonwoven having fibres with a coarseness of from 0.1 to 10 dtex, preferably from 2 to 7 dtex.
  • the fibres and/or the nonwoven material at least on a surface arranged to be in contact with skin of a user during use of the absorbent product, is coated with a lubricating coating composition suitable for use in absorbent and/or hygiene products, below called lubricating coated nonwoven.
  • This surface can be the entire topsheet 9 or the part of the topsheet which lies outside the absorbent body 11 of the panty liner 8.
  • Fig. 6 schematically shows an absorbent article in the form of a sanitary napkin 12 comprising a lubricating coated nonwoven according to the invention.
  • the sanitary napkin 12 comprises a liquid-permeable topsheet 9, a liquid-impermeable back sheet 10 and an absorbent body 11 arranged between the topsheet 9 and the back sheet 10.
  • the absorbent body 11 comprises an absorbent material with absorbent characteristics and a superabsorbent material.
  • the sanitary napkin has a first extension in a longitudinal direction and a second extension in a transverse direction.
  • the sanitary napkin may comprise wings 13, which are intended to be wrapped around the underwear of a user to secure it properly.
  • the sanitary napkin 12 comprises a nonwoven having a mixture of non-absorbent and absorbent fibres, wherein the non-absorbent and/or absorbent fibres have a coarseness of 1 to 10 dtex, at least on the surface of the sanitary napkin 12 which is in contact with the skin.
  • This surface can be the entire topsheet 9 or the part of the topsheet 9 which lies outside the absorbent body 11 of the sanitary napkin 12.
  • the part of the topsheet 9 which lies outside the absorbent body 11 of the sanitary napkin 12 may comprise the wings 13.
  • Fig. 7 schematically shows an absorbent article in the form of a diaper 16 comprising a lubricating coated nonwoven according to the invention.
  • the diaper 16 comprises a liquid-permeable topsheet 9, a liquid-impermeable back sheet 10 and an absorbent body 11 arranged between the topsheet 9 and the back sheet 10.
  • the absorbent body 11 comprises an absorbent material with absorbent characteristics and a superabsorbent material.
  • the diaper 16 has a first extension in a longitudinal direction and a second extension in a transverse direction.
  • the diaper 16 comprises a chassis 26, comprising a front panel 17, a crotch region 18 and a rear panel 19.
  • An absorbent product in the form of for example a diaper may also comprise fastening means 20 for securing the front and rear panels 17, 19 to each other to thereby secure the diaper 16 around the waist of a wearer.
  • This type of a diaper is a conventional open diaper.
  • the diaper 16 comprises a nonwoven having a mixture of non-absorbent and absorbent fibres, wherein the non-absorbent and/or absorbent fibres have a coarseness of 1 to 10 dtex, at least on the surface of the diaper 16 which is in contact with the skin. This surface can be the entire topsheet 9 or the part of the topsheet 9 which lies outside the absorbent body 11 of the diaper 16.
  • the part of the topsheet 9 which lies outside the absorbent body 11 of the diaper 16 may be part of or the whole of the front panel 17, part of or whole of the rear panel 19 as well as the fastening means 20.
  • a diaper normally comprises standing gathers 21 intended to form a leakage barrier to prevent for instance excess fluid from the absorbent body 11 to seep out from the diaper.
  • the standing gathers 21 may also comprise the lubricating coated nonwoven.
  • Fig. 8 schematically shows an absorbent article in the form of a pant-type diaper 22 comprising a lubricating coated nonwoven according to the invention.
  • the front and rear panels 17, 19 of the chassis 26 of a pant-type diaper are initially secured to each other by means of side seams to thereby provide a garment which can be drawn up on a wearer in the same manner as a normal undergarment.
  • the side seams may be made to be rupturable.
  • the pant-type diaper 22 further comprises a waist elastic 23 which is arranged to secure the pant-type diaper around the waist region of the wearer and leg elastic 24 which are arranged to secure the pant-type diaper around the legs of the wearer.
  • the waist elastic 23 and leg elastic 24 may be covered by the lubricating coated nonwoven material.
  • the pant-type diaper 22 is similar to the diaper 16, and the lubricating coated nonwoven is placed on the same areas as described for the diaper 16.
  • Fig. 9 schematically shows an absorbent article in the shape of a belt-diaper 25 comprising a lubricating coated nonwoven. These products are generally worn by adults and may be adapted for both incontinence and general use.
  • a belted absorbent product is provided with a chassis 26 and two belt halves 27, 28.
  • the chassis of belt-diaper 25 comprises a front panel 17, a crotch region 18 and a rear panel 19.
  • the chassis 26 may also comprise standing gathers 21.
  • the belt halves 27, 28 are either attached to the chassis 26 extending from the lateral sides of the rear panel 19 or are separate from the chassis 26 and arranged to be attached to the chassis 26.
  • the belt halves 27, 28 are intended to be placed around the waist of a wearer and fastened using any suitable fastener to retain the belted absorbent product around the waist of a wearer.
  • the belt on a side of the belt being arranged to be in contact with skin may also comprise the lubricating coated nonwoven.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Laminated Bodies (AREA)

Claims (15)

  1. Absorbierendes Produkt (8; 12; 16; 22; 25), das ein nicht-gewebtes Material bzw. ein Vliesmaterial (1) aufweist, das angeordnet ist, während einer Verwendung des absorbierenden Produkts mit Haut eines Nutzers in Kontakt zu stehen, wobei das Vliesmaterial (1) nicht-absorbierende und/oder absorbierende Fasern aufweist, wobei die absorbierenden Fasern in einer Menge von 2-30 Gew.-% basierend auf dem Gesamtgewicht der Fasern in dem Vliesmaterial vorhanden sind, wobei die Fasern (2) zumindest auf einer Oberfläche, die angeordnet ist, während der Verwendung des absorbierenden Produkts (8; 12; 16; 22; 25) mit Haut eines Nutzers in Kontakt zu stehen, eine Rauigkeit von 0,1 bis 10 dtex, vorzugsweise von 0,5 bis 7 dtex, aufweisen, wobei die Fasern (2) und/oder das Vliesmaterial (1) mit einer schmierenden Beschichtungszusammensetzung beschichtet sind, die zur Verwendung in absorbierenden und/oder Hygieneprodukten geeignet ist und geeignet ist zum Verringern von Nassreibung zwischen dem Vliesmaterial und der Haut eines Nutzers, wobei die schmierende Beschichtungszusammensetzung zumindest auf einer Oberfläche vorhanden ist, die angeordnet ist, während der Verwendung des absorbierenden Produkts mit Haut eines Nutzers in Kontakt zu stehen, wobei die Oberfläche ein oberer Belag des absorbierenden Produktes ist und/oder im Falle einer Windel auf einem oder mehreren der Folgenden liegt: einem Taillenbereich, einem Hüftbereich, Stehkräuselungen bzw. Kräuselungen für/beim Stehen, Beinöffnungen oder Gürtel.
  2. Absorbierendes Produkt (8; 12; 16; 22; 25) nach Anspruch 1, wobei die Fasern zumindest auf einer Oberfläche, die angeordnet ist, während der Verwendung des absorbierenden Produkts (8; 12; 16; 22; 25) mit Haut eines Nutzers in Kontakt zu stehen, eine Rauigkeit von 0,5 bis 3 dtex aufzuweisen.
  3. Absorbierendes Produkt (8; 12; 16; 22; 25) nach Anspruch 1 oder 2, wobei die schmierende Beschichtungszusammensetzung aus Silikonölen ausgewählt ist.
  4. Absorbierendes Produkt (8; 12; 16; 22; 25) nach Anspruch 1, 2 oder 3, wobei die schmierende Beschichtungszusammensetzung Polydimethylsiloxan ist.
  5. Absorbierendes Produkt (8; 12; 16; 22; 25) nach einem der vorhergehenden Ansprüche, wobei das Vliesmaterial absorbierende Fasern in einer Menge von 2-10 Gew.-% aufweist, und zwar basierend auf dem Gesamtgewicht der Fasern in dem Vliesmaterial (1).
  6. Absorbierendes Produkt (8; 12; 16; 22; 25) nach einem der vorhergehenden Ansprüche, wobei das absorbierende Produkt eine Windel, ein Inkontinenzschutz-Kleidungsstück, eine Damenbinde oder eine Slipeinlage bzw. ein Slipschutz ist.
  7. Absorbierendes Produkt (16; 22; 25) nach Anspruch 6, wobei das absorbierende Produkt (16; 22; 25) ein Chassis aufweist, das eine Vorder- und Rückwand bzw. eine vordere und eine hintere Stoffbahn und einen absorbierenden Körper (11) aufweist, der eine Benetzungszone zur Aufnahme von Urin und anderen Körperflüssigkeiten aufweist, wobei das Vliesmaterial (1) zumindest in einem Bereich außerhalb der Benetzungszone im absorbierenden Körper (11) enthalten ist.
  8. Absorbierendes Produkt (16; 22; 25) nach Anspruch 7, wobei das Vliesmaterial (1) zumindest in einem Bereich außerhalb des absorbierenden Körpers (11) enthalten ist.
  9. Absorbierendes Produkt (16; 22; 25) nach Anspruch 6-8, wobei das absorbierende Produkt (16; 22; 25) einen Taillenbereich, einen Hüftbereich, Stehkräuselungen und Beinöffnungen aufweist und wobei das Vliesmaterial (1) in mindestens einem der Folgenden enthalten ist: Taillenbereich, Hüftbereich, Stehkräuselungen und Beinöffnungen.
  10. Absorbierendes Produkt (25) nach einem der Ansprüche 6-9, wobei das absorbierende Produkt (25) einen an dem Chassis befestigten Gürtel oder einen von dem Chassis getrennten Gürtel aufweist, der so angeordnet ist, dass er an dem Chassis befestigbar ist, wobei das Vliesmaterial in dem Gürtel auf einer Seite des Gürtels enthalten ist, die so angeordnet ist, dass sie in Kontakt mit Haut ist.
  11. Absorbierendes Produkt (8; 12; 16; 22; 25) nach einem der Ansprüche 6-10, wobei das absorbierende Produkt (8; 12; 16; 22; 25) eine obere Schicht (9), einen absorbierenden Körper (11) und eine untere Schicht (10) aufweist, und wobei das Vliesmaterial (1) in der oberen Schicht (9) und/oder in der unteren Schicht (10) des absorbierenden Produkts (8; 12; 16; 22; 25) enthalten ist.
  12. Absorbierendes Produkt (8; 12; 16; 22; 25) nach einem der vorhergehenden Ansprüche, wobei das Vliesmaterial (1) in Gegenwart von Feuchtigkeit geringere Reibungswerte aufweist als ein Vliesmaterial (1), das Fasern (2) und/oder nichtgewebte Fasern ohne eine Beschichtung mit einer schmierenden Beschichtungszusammensetzung und/oder Fasern mit einer feineren Rauigkeit als 0,1 dtex auf einer Oberfläche aufweist, die angeordnet ist, während der Verwendung des absorbierenden Produkts (8; 12; 16; 22; 25) in Kontakt mit der Haut eines Nutzers zu stehen, und zwar gemessen mittels einer Kurve, die in wiederholten Durchläufen mit Messungen gemäß einem in der Beschreibung beschriebenen Stick-and-Slip-Verfahren erhalten wird, wobei die Reibungswerte in der Kurve in wiederholten Durchläufen erhalten werden und wobei die Kurve eine erste Steigung mit einem positiven Koeffizienten, der Zunahme in den Reibungswerten veranschaulicht, ein Plateau bzw. eine Ebene und eine zweite Steigung mit einem negativen Koeffizienten, der Abnahme in den Reibungswerten veranschaulicht, aufweist.
  13. Verwendung eines nicht-gewebten Materials bzw. eines Vliesmaterials (1) in einem absorbierenden oder Hygieneprodukt zur Verringerung von Nassreibung zwischen dem Vliesmaterial (1) und Haut eines Nutzers, wobei das Vliesmaterial (1) nicht-absorbierende und absorbierende Fasern aufweist, wobei die absorbierenden Fasern in einer Menge von 2-30 Gew.-% basierend auf dem Gesamtgewicht der Fasern in dem Vliesmaterial vorhanden sind, wobei die Fasern (2) eine Rauheit von 0,1 bis 10 dtex, vorzugsweise von 2 bis 7 dtex aufweisen und wobei die Fasern (2) und/oder das Vliesmaterial (1) mit einer schmierenden Beschichtungszusammensetzung beschichtet ist, die zur Verwendung in absorbierenden und/oder Hygieneprodukten geeignet ist, und zwar zumindest auf einer Oberfläche, die angeordnet ist, während der Verwendung des absorbierenden Produkts (8; 12; 16; 22; 25) mit Haut eines Nutzers in Kontakt zu stehen.
  14. Verwendung nach Anspruch 13, wobei das Vliesmaterial (1) in einem absorbierenden Produkt (8; 12; 16; 22; 25) verwendet wird, und zwar ausgewählt aus einer Windel, einem Inkontinenzschutz-Kleidungsstück, einer Damenbinde oder einer Slipeinlage bzw. einem Slipschutz.
  15. Verwendung nach Anspruch 14, wobei das Vliesmaterial (1) in im Wesentlichen nicht absorbierenden Bereichen des absorbierenden Produkts (8; 12; 16; 22; 25) verwendet wird.
EP15878175.7A 2015-01-14 2015-01-14 Saugfähiges produkt mit vliesstoff Active EP3244856B1 (de)

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EP3923889B1 (de) * 2019-02-15 2024-04-03 Essity Hygiene and Health Aktiebolag Saugfähiger artikel mit geprägter oberflächenschicht
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CN107106381B (zh) 2021-06-22
PL3244856T3 (pl) 2021-04-19
MX2017009207A (es) 2017-11-17
AU2015377274B2 (en) 2018-03-01
US20180028372A1 (en) 2018-02-01
US11672709B2 (en) 2023-06-13
JP2018504204A (ja) 2018-02-15
CN107106381A (zh) 2017-08-29
ES2841346T3 (es) 2021-07-08
WO2016114692A1 (en) 2016-07-21
RU2664357C1 (ru) 2018-08-16
EP3244856A1 (de) 2017-11-22
CO2017007321A2 (es) 2017-09-29
BR112017013070B1 (pt) 2022-09-27
BR112017013070A2 (pt) 2018-02-27
EP3244856A4 (de) 2018-10-17
AU2015377274A1 (en) 2017-06-29

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